<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			let arrayLike = {
				'0':'a',
				'1':'b',
				'2':'c',
				length:3
			};
			//ES5的写法
			var arr1 = [].slice.call(arrayLike);//['a','b','c']
			
			//ES6的写法
			let arr2 = Array.from(arrayLike);//['a','b','c']
			
		</script>
	</body>
</html>
